diff --git a/pyproject.toml b/pyproject.toml
index 88b0b1e80ea1be09cde712064b15b4d0c67d0d13..a5b1991c374a2cb110baef50a9aff30c0ce1e0aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,9 +14,10 @@ readme = "README.md"
 requires-python = ">=3.6"
 
 dependencies = [
-    "numpy>=1.21",  # Required for numerical computations
-    "numba>=0.56",  # For JIT optimization
-    "pytest>=7.0"   # For testing
+    "numpy>=1.21",      # Required for numerical computations
+    "numba>=0.56",      # For JIT optimization
+    "pytest>=7.0"       # For testing
+    "matplotlib>=3.4"   # For plotting
 ]
 
 [project.optional-dependencies]